#903439
Closest named color: Auburn (#9B2226). oklch(45.8% 0.125 20.3), rgb(144, 52, 57).
Aa
White text reads best on this color (7.67:1).
About this color
#903439 is a medium-dark, moderately saturated red. In OKLCH its lightness is 46%, its chroma 0.125 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.034 away. White text reads best on it, at 7.67:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.125) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #903439 |
| RGB | rgb(144, 52, 57) |
| HSL | hsl(357, 47%, 38%) |
| OKLCH | oklch(45.8% 0.125 20.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #903439 | 7.67:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #903439 | 2.73:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #903439 text on white | 7.67:1 | AAA | Lc 85.9 | Fine for body text |
| #903439 text on black | 2.73:1 | Fails | Lc -16.1 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E5E4
oklch(93.7% 0.021 21.2)
-
Step 200
200
#F3CFCE
oklch(88.5% 0.041 19.8)
-
Step 300
300
#ECAEAD
oklch(80.8% 0.073 19.8)
-
Step 400
400
#E08282
oklch(70.8% 0.116 20.4)
-
Step 500
500
#D45F62
oklch(63.1% 0.148 20.7)
-
Step 600
600
#C04149
oklch(55.7% 0.162 20.6)
-
Step 700
700
#A5323B
oklch(49.2% 0.15 20.3)
-
Step 800
800 (this color)
#903439
oklch(45.8% 0.125 20.3)
-
Step 900
900
#6C282B
oklch(37.7% 0.097 20.4)
-
Step 950
950
#401819
oklch(27% 0.063 20.7)
#903439 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #4B4739 | 0.134 |
| Deuteranopia (no green cones) | #625A37 | 0.124 |
| Tritanopia (no blue cones) | #9E2236 | 0.035 |
| Achromatopsia (no color) | #535353 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903439
#903439
oklch(45.8% 0.125 20.3)
- #006469
#006469
oklch(45.8% 0.078 200.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #903439, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.034
- Red Brown #8B2E16 ΔE 0.040
- Brick #A03623 ΔE 0.043
- Brown #A52A2A ΔE 0.044
- Brown Red #922B05 ΔE 0.046
- Rust Brown #8B3103 ΔE 0.051
- Burnt Red #9F2305 ΔE 0.051
- Carmine #9D0216 ΔE 0.057
Use #903439 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.